Improvement in cotton-gin-saw cleaners



R. S. MUNGER. Cotton-Gin Saw-Gleaner.

No. 217.813. Patented July 22,1879.

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UNITED STATES ROBERT S. MUNGER,

PATENT OFFIGEQ OF MEXIA, TEXAS.

IMPROVEMENT IN COTTON-GlN-SAW CLEANERS.

Specification forming part of Letters Patent No. 217,813, dated July 22,1879 application filed May 23, 1879.

To all whom it may concern:

Be it known that I, ROBERT S. MUNGER, of Mexia, in the county ofLimestone and State of Texas, have invented a new and ImprovedCotton-GinSaw Cleaner; and I do hereby declare that the following is afull, clear, and exact description of the same, reference being had tothe accompanying drawings, forming part of this specification, in whichFigure l is a sectional side elevation, and represents the cleaner inposition for operation. Fig. 2 is a face view of the saw-cleaaingknives.

The object of my invention is to provide a more simple, cheap, andefficient means for cleaning the saws of cotton-gins when gummed.

It consists, chiefly, in a series of slotted knives or scrapers ofpeculiar shape, adjustably attached to a movable revolving support, andadapted to be thrust against the saws when cleaning is desired.

It also consists in the construction and adjustment of theknife-support, as hereinafter fully described.

Referring to the drawings, E are the ginsaws, of the usual description.At a convenient location under the saws and parallel to the saw-shaft isa metal support, B, provided with a longitudinal slot, to, extending itsfull length, the sides of which slot are undercut in such a way that thenut L, which secures the screw 0, fits and slides therein, but will notrevolve. The slot is for the purpose of adjusting the knives laterally,all that is required being to pass the screw through the knife, fastenthe nut on the screw, and slip the nut in the groove, when the knivesmay be adjusted to any position on the support, thus making it easy toadjust to any saw and on any gin. The ends of the support B are roundedinto journals in, which rest in bearings in the gin-frame; or thesupport maybe hinged so as to move through an are.

To the front surface of support B a series of slotted knives, D, aresecured by screws 0, which latter pass through slots 01 in the knives,through slot to in the support, and into the fastening-nuts L. Theseknives may each have two slots, (1, for the fastening-screws, and may beconnected to the support by two slots,

(0, when desired.

Each knife cleans one saw, and is made beveled in order to present asharp scraping-edge to the saws. This bevel is, however, not essential,as theknives may be made stiff enough to clean without sharpening; butthey may easily be detached and sharpened if desired.

The slot (1 is larger than the screw, to permit the knives to beindividually adjusted to or from the saws. The narrow slit or slot G inthe end of each knife, through which the saw passes, terminates in thelarger slot or opening, H, for the double purpose of making thecleaning-knife more flexible and to provide a free passage for the gummymatter scraped from the saws, thereby keeping the knives clean andpreventing them from cloggmg.

The support B, which is hinged or journaled in the gin-frame, has one ofits ends preferably extended out far enough to receive the lever F, formore easily operating the cleaner.

When there is no convenient place for this lever, however, it may beleft off.

The operation is as follows: When the saws become gummed the gin isstopped and the knives are thrust in contact with the saws, and the sawsturned back through one revolution,

by which movement the saws are cleaned.

Cleats fmay be secured to the gin to hold the support in the properposition when in or out of work.

In defining myinvention I would state that I am aware of a cottongin-saw cleaner in which a rotary knife-support is provided with kniveswhich are made in two separate pieces adapted to scrape opposite. sidesof the sawblades but in such case the separate character of the knivesdoes not permit the twin sections to be held so firmly together as toefficiently clean the saws, as is the ease with my construction, inwhich the twin sections of the knife are made in one piece.

In constructing and arranging the knifesupport B this is made with along hearing at 00, so that while said support has a rotary adjustmentit has also a longitudinal adjustment. The object of this is to allowthe knives to be changed collectively from one saw to the next. Thisadjustment has special value in connection with the knife shown in myPatent No. 202,744, which I propose to use with this support, since itpermits these tapering knives to be shifted so as to rub alternately onbothscribed.

3. The metal support B, provided with the adjusting-slot a, in thedirection of its length, in combination with a set of cleaning-knives,and bolts and nuts for securing the same, as and for the purposespecified.

4. The combination, with the support B, having an undercut slot, a, inthe direction of its length, of a series of slotted knives, screws 0,and nuts L, as and for the purpose specified...

ROBERT S. MUNGEB.

WVitnesses H. M. MUNGER, S. S. WALKER.

